[turbofan] Speculative optimize number operations with no feedback.

src/compiler/redundancy-elimination.h

Index: src/compiler/redundancy-elimination.h
diff --git a/src/compiler/redundancy-elimination.h b/src/compiler/redundancy-elimination.h
index 88f9032a84aa52e6c1662163e1cd2cfe400b342e..73753a5f50c94064070808fe5dc1ac257844a164 100644
--- a/src/compiler/redundancy-elimination.h
+++ b/src/compiler/redundancy-elimination.h
@@ -33,7 +33,8 @@ class RedundancyElimination final : public AdvancedReducer {
     void Merge(EffectPathChecks const* that);
 
     EffectPathChecks const* AddCheck(Zone* zone, Node* node) const;
-    Node* LookupCheck(Node* node) const;
+    template <typename Predicate>
+    V8_INLINE Node* LookupCheck(Node* node, Predicate predicate) const;
 
    private:
     EffectPathChecks(Check* head, size_t size) : head_(head), size_(size) {}
@@ -55,6 +56,7 @@ class RedundancyElimination final : public AdvancedReducer {
   };
 
   Reduction ReduceCheckNode(Node* node);
+  Reduction ReduceSpeculativeNode(Node* node);
   Reduction ReduceEffectPhi(Node* node);
   Reduction ReduceStart(Node* node);
   Reduction ReduceOtherNode(Node* node);